Structural features of residue 4 in chain B

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Electrostatic Interactions:
HIS A 181 NE2	HIS B 4 ND1	0.694	INTER-CHAIN
HIS B 4 ND1	ARG B 6 NH1	4.594	INTRA-CHAIN
HIS B 4 ND1	HIS B 69 NE2	1.507	INTRA-CHAIN
HIS B 4 ND1	HIS A 181 NE2	1.561	INTER-CHAIN
HIS B 4 ND1	ASP F 221 OD1	-3.721	INTER-CHAIN
HIS B 4 ND1	ASP F 223 OD1	-1.607	INTER-CHAIN
HIS B 4 ND1	HIS C 253 ND1	0.746	INTER-CHAIN
HIS B 4 ND1	HIS C 253 NE2	1.753	INTER-CHAIN
HIS B 4 NE2	ARG B 6 NH1	4.082	INTRA-CHAIN
HIS B 4 NE2	HIS B 69 ND1	0.726	INTRA-CHAIN
HIS B 4 NE2	HIS B 69 NE2	1.728	INTRA-CHAIN
HIS B 4 NE2	ASP F 221 OD1	-3.013	INTER-CHAIN
HIS B 4 NE2	ASP F 223 OD1	-1.420	INTER-CHAIN
HIS B 4 NE2	HIS C 253 ND1	0.773	INTER-CHAIN
HIS B 4 NE2	HIS C 253 NE2	1.769	INTER-CHAIN
ARG B 6 NH1	HIS B 4 NE2	4.082	INTRA-CHAIN
ARG B 6 NH2	HIS B 4 NE2	3.682	INTRA-CHAIN
HIS B 69 ND1	HIS B 4 NE2	1.633	INTRA-CHAIN
HIS B 69 NE2	HIS B 4 ND1	0.670	INTRA-CHAIN
HIS B 69 NE2	HIS B 4 NE2	1.728	INTRA-CHAIN
HIS C 253 ND1	HIS B 4 ND1	0.746	INTER-CHAIN
HIS C 253 ND1	HIS B 4 NE2	1.738	INTER-CHAIN
HIS C 253 NE2	HIS B 4 ND1	0.779	INTER-CHAIN
HIS C 253 NE2	HIS B 4 NE2	1.769	INTER-CHAIN
ASP F 221 OD1	HIS B 4 ND1	-3.721	INTER-CHAIN
ASP F 221 OD2	HIS B 4 ND1	-2.969	INTER-CHAIN
ASP F 223 OD1	HIS B 4 ND1	-1.607	INTER-CHAIN
ASP F 223 OD2	HIS B 4 ND1	-1.466	INTER-CHAIN

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Hydrogen bonds:

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|Res1 type| Res1 No.| Chain1| Res2 type| Res2 No.| Chain2|
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|        H|        4|      B|         F|      219|      F|
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|        D|      221|      F|         H|        4|      B|
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Van der Waal's Interactions:
PHE A 2 CZ 19	HIS B 4 NE2 2150	-0.217	INTER-CHAIN
HIS B 4 NE2 2150	LEU B 8 CD2 2185	-0.008	INTRA-CHAIN
HIS B 4 NE2 2150	LEU A 43 CD2 354	-0.019	INTER-CHAIN
HIS B 4 NE2 2150	TRP A 47 CH2 387	-0.009	INTER-CHAIN
HIS B 4 NE2 2150	LEU A 60 CD2 485	-0.046	INTER-CHAIN
HIS B 4 NE2 2150	GLU B 71 OE2 2684	-2.034	INTRA-CHAIN
HIS B 4 NE2 2150	SER F 220 OG 2263	-0.085	INTER-CHAIN